diff --git a/.coveragerc b/.coveragerc
deleted file mode 100644
index 5c04afa..0000000
--- a/.coveragerc
+++ /dev/null
@@ -1,4 +0,0 @@
-[report]
-omit =
-    tests/*
-    /usr/lib/python3/dist-packages/*
\ No newline at end of file
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 44f34bc..7ff0502 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,35 +1,47 @@
-name: Test
+name: Test plugin
 
 on:
     pull_request:
-        branches: [main]
-    workflow_dispatch:
+        branches:
+            - main
+
+env:
+    # plugin name/directory where the code for the plugin is stored
+    PLUGIN_NAME: gtfsgo
+    # python notation to test running inside plugin
+    TESTS_RUN_FUNCTION: gtfsgo.test_suite.test_package
+    # Docker settings
+    DOCKER_IMAGE: qgis/qgis
 
 jobs:
-    Test:
+    Test-plugin-gtfsgo:
         runs-on: ubuntu-latest
+
         strategy:
             matrix:
-                qgis_image_tag: [release-3_28]
-        env:
-            OS: ubuntu
-            QGIS_IMAGE_TAG: ${{ matrix.qgis_image_tag }}
-        steps:
-            - uses: actions/checkout@v3
+                docker_tags: [release-3_28, release-3_34]
 
-            - name: Pull QGIS
-              run: docker pull qgis/qgis:${{ matrix.qgis_image_tag }}
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v2
 
             - name: Export requirements.txt
               run: |
                   pip3 install poetry
                   poetry export --with dev -f requirements.txt -o requirements.txt
 
-            - name: Run tests
-              run: docker run --rm --net=host --volume .:/app -w=/app -e QGIS_PLUGIN_IN_CI=1 qgis/qgis:${{ matrix.qgis_image_tag }} sh -c "pip3 install -r /app/requirements.txt && xvfb-run -s '+extension GLX -screen 0 1024x768x24' pytest -v --cov --cov-report=xml --cov-report=term"
+            - name: Docker pull and create qgis-testing-environment
+              run: |
+                  docker pull "$DOCKER_IMAGE":${{ matrix.docker_tags }}
+                  docker run -d --name qgis-testing-environment -v .:/tests_directory/gtfsgo -e DISPLAY=:99 "$DOCKER_IMAGE":${{ matrix.docker_tags }}
+
+            - name: Docker set up QGIS
+              run: |
+                  docker exec qgis-testing-environment sh -c "qgis_setup.sh $PLUGIN_NAME"
+                  docker exec qgis-testing-environment sh -c "rm -f /root/.local/share/QGIS/QGIS3/profiles/default/python/plugins/$PLUGIN_NAME"
+                  docker exec qgis-testing-environment sh -c "ln -s /tests_directory/$PLUGIN_NAME /root/.local/share/QGIS/QGIS3/profiles/default/python/plugins/$PLUGIN_NAME"
+                  docker exec qgis-testing-environment sh -c "pip3 install -r /tests_directory/$PLUGIN_NAME/requirements.txt"
 
-            - name: Upload coverage reports to Codecov
-              uses: codecov/codecov-action@v4.0.1
-              with:
-                  token: ${{ secrets.CODECOV_TOKEN }}
-                  slug: MIERUNE/GTFS-GO
+            - name: Docker run plugin tests
+              run: |
+                  docker exec qgis-testing-environment sh -c "qgis_testrunner.sh $TESTS_RUN_FUNCTION"
diff --git a/poetry.lock b/poetry.lock
index 0ab6017..586eacf 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,131 +1,5 @@
 # This file is automatically @generated by Poetry and should not be changed by hand.
 
-[[package]]
-name = "attrs"
-version = "22.2.0"
-description = "Classes Without Boilerplate"
-category = "dev"
-optional = false
-python-versions = ">=3.6"
-files = [
-    {file = "attrs-22.2.0-py3-none-any.whl", hash = "sha256:29e95c7f6778868dbd49170f98f8818f78f3dc5e0e37c0b1f474e3561b240836"},
-    {file = "attrs-22.2.0.tar.gz", hash = "sha256:c9227bfc2f01993c03f68db37d1d15c9690188323c067c641f1a35ca58185f99"},
-]
-
-[package.extras]
-cov = ["attrs[tests]", "coverage-enable-subprocess", "coverage[toml] (>=5.3)"]
-dev = ["attrs[docs,tests]"]
-docs = ["furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier", "zope.interface"]
-tests = ["attrs[tests-no-zope]", "zope.interface"]
-tests-no-zope = ["cloudpickle", "cloudpickle", "hypothesis", "hypothesis", "mypy (>=0.971,<0.990)", "mypy (>=0.971,<0.990)", "pympler", "pympler", "pytest (>=4.3.0)", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-mypy-plugins", "pytest-xdist[psutil]", "pytest-xdist[psutil]"]
-
-[[package]]
-name = "colorama"
-version = "0.4.6"
-description = "Cross-platform colored terminal text."
-category = "dev"
-optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
-files = [
-    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
-    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
-]
-
-[[package]]
-name = "coverage"
-version = "7.5.2"
-description = "Code coverage measurement for Python"
-category = "dev"
-optional = false
-python-versions = ">=3.8"
-files = [
-    {file = "coverage-7.5.2-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:554c7327bf0fd688050348e22db7c8e163fb7219f3ecdd4732d7ed606b417263"},
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-]
-
-[package.dependencies]
-tomli = {version = "*", optional = true, markers = "python_full_version <= \"3.11.0a6\" and extra == \"toml\""}
-
-[package.extras]
-toml = ["tomli"]
-
-[[package]]
-name = "exceptiongroup"
-version = "1.1.0"
-description = "Backport of PEP 654 (exception groups)"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "exceptiongroup-1.1.0-py3-none-any.whl", hash = "sha256:327cbda3da756e2de031a3107b81ab7b3770a602c4d16ca618298c526f4bec1e"},
-    {file = "exceptiongroup-1.1.0.tar.gz", hash = "sha256:bcb67d800a4497e1b404c2dd44fca47d3b7a5e5433dbab67f96c1a685cdfdf23"},
-]
-
-[package.extras]
-test = ["pytest (>=6)"]
-
-[[package]]
-name = "iniconfig"
-version = "2.0.0"
-description = "brain-dead simple config-ini parsing"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
-    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
-]
-
 [[package]]
 name = "numpy"
 version = "1.26.4"
@@ -172,18 +46,6 @@ files = [
     {file = "numpy-1.26.4.tar.gz", hash = "sha256:2a02aba9ed12e4ac4eb3ea9421c420301a0c6460d9830d74a9df87efa4912010"},
 ]
 
-[[package]]
-name = "packaging"
-version = "23.0"
-description = "Core utilities for Python packages"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "packaging-23.0-py3-none-any.whl", hash = "sha256:714ac14496c3e68c99c29b00845f7a2b85f3bb6f1078fd9f72fd20f0570002b2"},
-    {file = "packaging-23.0.tar.gz", hash = "sha256:b6ad297f8907de0fa2fe1ccbd26fdaf387f5f47c7275fedf8cce89f99446cf97"},
-]
-
 [[package]]
 name = "pandas"
 version = "2.2.2"
@@ -258,118 +120,6 @@ sql-other = ["SQLAlchemy (>=2.0.0)", "adbc-driver-postgresql (>=0.8.0)", "adbc-d
 test = ["hypothesis (>=6.46.1)", "pytest (>=7.3.2)", "pytest-xdist (>=2.2.0)"]
 xml = ["lxml (>=4.9.2)"]
 
-[[package]]
-name = "pluggy"
-version = "1.5.0"
-description = "plugin and hook calling mechanisms for python"
-category = "dev"
-optional = false
-python-versions = ">=3.8"
-files = [
-    {file = "pluggy-1.5.0-py3-none-any.whl", hash = "sha256:44e1ad92c8ca002de6377e165f3e0f1be63266ab4d554740532335b9d75ea669"},
-    {file = "pluggy-1.5.0.tar.gz", hash = "sha256:2cffa88e94fdc978c4c574f15f9e59b7f4201d439195c3715ca9e2486f1d0cf1"},
-]
-
-[package.extras]
-dev = ["pre-commit", "tox"]
-testing = ["pytest", "pytest-benchmark"]
-
-[[package]]
-name = "pytest"
-version = "7.2.1"
-description = "pytest: simple powerful testing with Python"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "pytest-7.2.1-py3-none-any.whl", hash = "sha256:c7c6ca206e93355074ae32f7403e8ea12163b1163c976fee7d4d84027c162be5"},
-    {file = "pytest-7.2.1.tar.gz", hash = "sha256:d45e0952f3727241918b8fd0f376f5ff6b301cc0777c6f9a556935c92d8a7d42"},
-]
-
-[package.dependencies]
-attrs = ">=19.2.0"
-colorama = {version = "*", markers = "sys_platform == \"win32\""}
-exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
-iniconfig = "*"
-packaging = "*"
-pluggy = ">=0.12,<2.0"
-tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
-
-[package.extras]
-testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
-
-[[package]]
-name = "pytest-cov"
-version = "5.0.0"
-description = "Pytest plugin for measuring coverage."
-category = "dev"
-optional = false
-python-versions = ">=3.8"
-files = [
-    {file = "pytest-cov-5.0.0.tar.gz", hash = "sha256:5837b58e9f6ebd335b0f8060eecce69b662415b16dc503883a02f45dfeb14857"},
-    {file = "pytest_cov-5.0.0-py3-none-any.whl", hash = "sha256:4f0764a1219df53214206bf1feea4633c3b558a2925c8b59f144f682861ce652"},
-]
-
-[package.dependencies]
-coverage = {version = ">=5.2.1", extras = ["toml"]}
-pytest = ">=4.6"
-
-[package.extras]
-testing = ["fields", "hunter", "process-tests", "pytest-xdist", "virtualenv"]
-
-[[package]]
-name = "pytest-mock"
-version = "3.14.0"
-description = "Thin-wrapper around the mock package for easier use with pytest"
-category = "dev"
-optional = false
-python-versions = ">=3.8"
-files = [
-    {file = "pytest-mock-3.14.0.tar.gz", hash = "sha256:2719255a1efeceadbc056d6bf3df3d1c5015530fb40cf347c0f9afac88410bd0"},
-    {file = "pytest_mock-3.14.0-py3-none-any.whl", hash = "sha256:0b72c38033392a5f4621342fe11e9219ac11ec9d375f8e2a0c164539e0d70f6f"},
-]
-
-[package.dependencies]
-pytest = ">=6.2.5"
-
-[package.extras]
-dev = ["pre-commit", "pytest-asyncio", "tox"]
-
-[[package]]
-name = "pytest-qgis"
-version = "2.0.0"
-description = "A pytest plugin for testing QGIS python plugins"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "pytest-qgis-2.0.0.tar.gz", hash = "sha256:1a801dfa85a339c36a1a3ffac1c4224d5a05e9acd77aa50782a4ea6e50fd38c9"},
-    {file = "pytest_qgis-2.0.0-py3-none-any.whl", hash = "sha256:b09f374f593292e09f45dc5a8c8e40b83e8d8d80f32f64a6482d21626b465086"},
-]
-
-[package.dependencies]
-pytest = ">=6.0"
-
-[[package]]
-name = "pytest-qt"
-version = "4.4.0"
-description = "pytest support for PyQt and PySide applications"
-category = "dev"
-optional = false
-python-versions = ">=3.8"
-files = [
-    {file = "pytest-qt-4.4.0.tar.gz", hash = "sha256:76896142a940a4285339008d6928a36d4be74afec7e634577e842c9cc5c56844"},
-    {file = "pytest_qt-4.4.0-py3-none-any.whl", hash = "sha256:001ed2f8641764b394cf286dc8a4203e40eaf9fff75bf0bfe5103f7f8d0c591d"},
-]
-
-[package.dependencies]
-pluggy = ">=1.1"
-pytest = "*"
-
-[package.extras]
-dev = ["pre-commit", "tox"]
-doc = ["sphinx", "sphinx-rtd-theme"]
-
 [[package]]
 name = "python-dateutil"
 version = "2.9.0.post0"
@@ -436,18 +186,6 @@ files = [
     {file = "six-1.16.0.tar.gz", hash = "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926"},
 ]
 
-[[package]]
-name = "tomli"
-version = "2.0.1"
-description = "A lil' TOML parser"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
-    {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
-]
-
 [[package]]
 name = "tzdata"
 version = "2024.1"
@@ -463,4 +201,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "1390d9a37044c5d0e692ab25f6557e7834afbc0da043f94fe62b19917f61911f"
+content-hash = "a4720e0cabe241d8069aff076a50d004fcd1c38a0c9d2726a46269fdcd7709aa"
diff --git a/pyproject.toml b/pyproject.toml
index 43f0cf1..159c74f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,13 +10,8 @@ python = "^3.9"
 
 
 [tool.poetry.group.dev.dependencies]
-pytest = "^7.2.1"
 ruff = "^0.4.3"
-pytest-qt = "^4.4.0"
-pytest-cov = "^5.0.0"
 pandas = "^2.2.2"
-pytest-mock = "^3.14.0"
-pytest-qgis = "^2.0.0"
 
 
 [build-system]
@@ -25,5 +20,5 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.ruff]
 select = ["F", "E", "W", "B", "C90", "N", "I"]
-ignore = ["N999", "N802", "F401", "E501"]
+ignore = ["N999", "N802", "F401", "E501", "N806", "C901", "N803", "N815", "B018"]
 target-version = "py39"
\ No newline at end of file
diff --git a/test_suite.py b/test_suite.py
new file mode 100644
index 0000000..c5fd63e
--- /dev/null
+++ b/test_suite.py
@@ -0,0 +1,85 @@
+"""
+Test Suite.
+"""
+
+import os
+import sys
+import tempfile
+import unittest
+
+from osgeo import gdal
+from qgis.core import Qgis
+
+try:
+    from pip import main as pipmain
+except ImportError:
+    from pip._internal import main as pipmain
+
+try:
+    import coverage
+except ImportError:
+    pipmain(["install", "coverage"])
+    import coverage
+
+__author__ = "Alessandro Pasotti"
+__revision__ = "$Format:%H$"
+__date__ = "30/04/2018"
+__copyright__ = "Copyright 2018, North Road"
+
+
+def _run_tests(test_suite, package_name, with_coverage=False):
+    """Core function to test a test suite."""
+    count = test_suite.countTestCases()
+    print("########")
+    print("%s tests has been discovered in %s" % (count, package_name))
+    print("Python GDAL : %s" % gdal.VersionInfo("VERSION_NUM"))
+    print("QGIS version : {}".format(Qgis.version()))
+    print("########")
+    if with_coverage:
+        cov = coverage.Coverage(
+            source=["/processing_r"],
+            omit=["*/test/*"],
+        )
+        cov.start()
+
+    unittest.TextTestRunner(verbosity=3, stream=sys.stdout).run(test_suite)
+
+    if with_coverage:
+        cov.stop()
+        cov.save()
+
+        with tempfile.NamedTemporaryFile(delete=False) as report:
+            cov.report(file=report)
+            # Produce HTML reports in the `htmlcov` folder and open index.html
+            # cov.html_report()
+            report.close()
+
+            with open(report.name, "r", encoding="utf8") as fin:
+                print(fin.read())
+
+
+def test_package(package="gtfsgo"):
+    """Test package.
+    This function is called by travis without arguments.
+
+    :param package: The package to test.
+    :type package: str
+    """
+    test_loader = unittest.defaultTestLoader
+    try:
+        test_suite = test_loader.discover(package)
+    except ImportError:
+        test_suite = unittest.TestSuite()
+    _run_tests(test_suite, package)
+
+
+def test_environment():
+    """Test package with an environment variable."""
+    package = os.environ.get("TESTING_PACKAGE", "gtfsgo")
+    test_loader = unittest.defaultTestLoader
+    test_suite = test_loader.discover(package)
+    _run_tests(test_suite, package)
+
+
+if __name__ == "__main__":
+    test_package()
diff --git a/tests/conftest.py b/tests/conftest.py
deleted file mode 100644
index fd7930e..0000000
--- a/tests/conftest.py
+++ /dev/null
@@ -1,22 +0,0 @@
-from typing import Iterable
-
-import pytest
-from pytest_mock import MockerFixture
-from qgis.gui import QgisInterface
-from qgis.PyQt.QtCore import QSettings
-
-from ..__init__ import classFactory
-
-
-@pytest.fixture()
-def plugin(qgis_iface: QgisInterface, mocker: MockerFixture) -> Iterable[None]:
-    # mock
-    mocker.patch.object(QSettings, "value", return_value="en")
-    qgis_iface.addPluginToWebMenu = lambda x, y: None  # pytest-qgisで未実装
-
-    _plugin = classFactory(qgis_iface)
-    _plugin.initGui()
-
-    yield _plugin
-
-    # _plugin.unload() QgisInterface.removePluginMenu()がpytest-qgisで未実装
diff --git a/tests/qgis_interface.py b/tests/qgis_interface.py
new file mode 100644
index 0000000..5ffc59f
--- /dev/null
+++ b/tests/qgis_interface.py
@@ -0,0 +1,224 @@
+# coding=utf-8
+"""QGIS plugin implementation.
+
+.. note:: This program is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published by
+     the Free Software Foundation; either version 2 of the License, or
+     (at your option) any later version.
+
+.. note:: This source code was copied from the 'postgis viewer' application
+     with original authors:
+     Copyright (c) 2010 by Ivan Mincik, ivan.mincik@gista.sk
+     Copyright (c) 2011 German Carrillo, geotux_tuxman@linuxmail.org
+     Copyright (c) 2014 Tim Sutton, tim@linfiniti.com
+
+"""
+
+__author__ = "tim@linfiniti.com"
+__revision__ = "$Format:%H$"
+__date__ = "10/01/2011"
+__copyright__ = (
+    "Copyright (c) 2010 by Ivan Mincik, ivan.mincik@gista.sk and "
+    "Copyright (c) 2011 German Carrillo, geotux_tuxman@linuxmail.org"
+    "Copyright (c) 2014 Tim Sutton, tim@linfiniti.com"
+)
+
+from typing import List
+
+from PyQt5.QtCore import QObject, QSize, pyqtSignal, pyqtSlot
+from qgis.core import QgsMapLayer, QgsProject
+from qgis.gui import QgsMapCanvas, QgsMessageBar
+from qgis.PyQt.QtWidgets import QDockWidget
+
+
+# noinspection PyMethodMayBeStatic,PyPep8Naming
+class QgisInterface(QObject):
+    """Class to expose QGIS objects and functions to plugins.
+
+    This class is here for enabling us to run unit tests only,
+    so most methods are simply stubs.
+    """
+
+    currentLayerChanged = pyqtSignal(QgsMapLayer)
+
+    def __init__(self, canvas: QgsMapCanvas):
+        """Constructor
+        :param canvas:
+        """
+        QObject.__init__(self)
+        self.canvas = canvas
+        # Set up slots so we can mimic the behaviour of QGIS when layers
+        # are added.
+
+        # noinspection PyArgumentList
+        QgsProject.instance().layersAdded.connect(self.addLayers)
+        # noinspection PyArgumentList
+        QgsProject.instance().layerWasAdded.connect(self.addLayer)
+        # noinspection PyArgumentList
+        QgsProject.instance().removeAll.connect(self.removeAllLayers)
+
+        # For processing module
+        self.destCrs = None
+
+        self.message_bar = QgsMessageBar()
+
+    def addLayers(self, layers: List[QgsMapLayer]):
+        """Handle layers being added to the registry so they show up in canvas.
+
+        :param layers: list<QgsMapLayer> list of map layers that were added
+
+        .. note:: The QgsInterface api does not include this method,
+            it is added here as a helper to facilitate testing.
+        """
+        # LOGGER.debug('addLayers called on qgis_interface')
+        # LOGGER.debug('Number of layers being added: %s' % len(layers))
+        # LOGGER.debug('Layer Count Before: %s' % len(self.canvas.layers()))
+        current_layers = self.canvas.layers()
+        final_layers = []
+        for layer in current_layers:
+            final_layers.append(layer)
+        for layer in layers:
+            final_layers.append(layer)
+
+        self.canvas.setLayers(final_layers)
+        # LOGGER.debug('Layer Count After: %s' % len(self.canvas.layers()))
+
+    def addLayer(self, layer: QgsMapLayer):
+        """Handle a layer being added to the registry so it shows up in canvas.
+
+        :param layer: list<QgsMapLayer> list of map layers that were added
+
+        .. note: The QgsInterface api does not include this method, it is added
+                 here as a helper to facilitate testing.
+
+        .. note: The addLayer method was deprecated in QGIS 1.8 so you should
+                 not need this method much.
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    @pyqtSlot()
+    def removeAllLayers(self):  # pylint: disable=no-self-use
+        """Remove layers from the canvas before they get deleted."""
+        self.canvas.setLayers([])
+
+    def newProject(self):  # pylint: disable=no-self-use
+        """Create new project."""
+        # noinspection PyArgumentList
+        QgsProject.instance().clear()
+
+    # ---------------- API Mock for QgsInterface follows -------------------
+
+    def zoomFull(self):
+        """Zoom to the map full extent."""
+        pass  # pylint: disable=unnecessary-pass
+
+    def zoomToPrevious(self):
+        """Zoom to previous view extent."""
+        pass  # pylint: disable=unnecessary-pass
+
+    def zoomToNext(self):
+        """Zoom to next view extent."""
+        pass  # pylint: disable=unnecessary-pass
+
+    def zoomToActiveLayer(self):
+        """Zoom to extent of active layer."""
+        pass  # pylint: disable=unnecessary-pass
+
+    def addVectorLayer(self, path: str, base_name: str, provider_key: str):
+        """Add a vector layer.
+
+        :param path: Path to layer.
+        :type path: str
+
+        :param base_name: Base name for layer.
+        :type base_name: str
+
+        :param provider_key: Provider key e.g. 'ogr'
+        :type provider_key: str
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    def addRasterLayer(self, path: str, base_name: str):
+        """Add a raster layer given a raster layer file name
+
+        :param path: Path to layer.
+        :type path: str
+
+        :param base_name: Base name for layer.
+        :type base_name: str
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    def activeLayer(self) -> QgsMapLayer:  # pylint: disable=no-self-use
+        """Get pointer to the active layer (layer selected in the legend)."""
+        # noinspection PyArgumentList
+        layers = QgsProject.instance().mapLayers()
+        for item in layers:
+            return layers[item]
+
+    def addToolBarIcon(self, action):
+        """Add an icon to the plugins toolbar.
+
+        :param action: Action to add to the toolbar.
+        :type action: QAction
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    def removeToolBarIcon(self, action):
+        """Remove an action (icon) from the plugin toolbar.
+
+        :param action: Action to add to the toolbar.
+        :type action: QAction
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    def addToolBar(self, name):
+        """Add toolbar with specified name.
+
+        :param name: Name for the toolbar.
+        :type name: str
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    def mapCanvas(self) -> QgsMapCanvas:
+        """Return a pointer to the map canvas."""
+        return self.canvas
+
+    def mainWindow(self):
+        """Return a pointer to the main window.
+
+        In case of QGIS it returns an instance of QgisApp.
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    def addDockWidget(self, area, dock_widget: QDockWidget):
+        """Add a dock widget to the main window.
+
+        :param area: Where in the ui the dock should be placed.
+        :type area:
+
+        :param dock_widget: A dock widget to add to the UI.
+        :type dock_widget: QDockWidget
+        """
+        pass  # pylint: disable=unnecessary-pass
+
+    def legendInterface(self):
+        """Get the legend."""
+        return self.canvas
+
+    def iconSize(self, dockedToolbar) -> int:
+        """
+        Returns the toolbar icon size.
+        :param dockedToolbar: If True, the icon size
+        for toolbars contained within docks is returned.
+        """
+        if dockedToolbar:
+            return QSize(16, 16)
+
+        return QSize(24, 24)
+
+    def messageBar(self) -> QgsMessageBar:
+        """
+        Return the message bar of the main app
+        """
+        return self.message_bar
diff --git a/tests/test_dialog.py b/tests/test_dialog.py
new file mode 100644
index 0000000..a5d210c
--- /dev/null
+++ b/tests/test_dialog.py
@@ -0,0 +1,24 @@
+import os
+import unittest
+
+from gtfs_go_dialog import GTFSGoDialog
+
+from .utilities import get_qgis_app
+
+QGIS_APP, CANVAS, IFACE, PARENT = get_qgis_app()
+
+
+class TestDialog(unittest.TestCase):
+    def test_dialog(self):
+        """Test the dialog."""
+        dialog = GTFSGoDialog(IFACE)
+
+        assert dialog.isVisible() is False
+        dialog.show()
+        assert dialog.isVisible() is True
+        dialog.close()
+        assert dialog.isVisible() is False
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/test_gtfs_go.py b/tests/test_gtfs_go.py
deleted file mode 100644
index 4563349..0000000
--- a/tests/test_gtfs_go.py
+++ /dev/null
@@ -1,16 +0,0 @@
-from gtfs_go import GTFSGo
-
-
-def test_run(plugin: GTFSGo):
-    """ダイアログを表示する関数のテスト"""
-
-    # 初期状態でダイアログは未初期化
-    assert plugin.dialog is None
-
-    plugin.run()
-    assert plugin.dialog.isVisible()
-
-    plugin.dialog.close()
-
-    assert not plugin.dialog.isVisible()  # ダイアログが閉じられても
-    assert plugin.dialog is not None  # インスタンスは保持される
diff --git a/tests/test_gtfs_go_dialog.py b/tests/test_gtfs_go_dialog.py
deleted file mode 100644
index 6e3c2b4..0000000
--- a/tests/test_gtfs_go_dialog.py
+++ /dev/null
@@ -1,16 +0,0 @@
-from qgis.gui import QgisInterface
-
-from gtfs_go_dialog import GTFSGoDialog
-
-
-def test_init(qgis_iface: QgisInterface):
-    dialog = GTFSGoDialog(qgis_iface)
-    assert not dialog.isVisible()
-    dialog.show()
-    assert dialog.isVisible()
-    dialog.close()
-    assert not dialog.isVisible()
-
-    # init_gui() runs during init
-    assert dialog.repositoryCombobox.currentText() == "Preset"
-    assert dialog.comboBox.currentText() == "---Load local ZipFile---"
diff --git a/tests/test_gtfs_go_labelling.py b/tests/test_gtfs_go_labelling.py
deleted file mode 100644
index 92caf24..0000000
--- a/tests/test_gtfs_go_labelling.py
+++ /dev/null
@@ -1,9 +0,0 @@
-from gtfs_go_labeling import get_labeling_for_stops
-
-
-def test_get_labeling_for_stops():
-    labeling = get_labeling_for_stops()
-    assert labeling.settings().fieldName == "stop_name"  # default value
-
-    labeling = get_labeling_for_stops("testname")
-    assert labeling.settings().fieldName == "testname"
diff --git a/tests/test_gtfs_go_renderer.py b/tests/test_gtfs_go_renderer.py
deleted file mode 100644
index f47049b..0000000
--- a/tests/test_gtfs_go_renderer.py
+++ /dev/null
@@ -1,52 +0,0 @@
-from pytest_mock import MockerFixture
-from qgis.core import (
-    QgsCategorizedSymbolRenderer,
-    QgsSingleSymbolRenderer,
-    QgsVectorLayer,
-)
-
-from gtfs_go_renderer import Renderer
-
-
-def test_renderer_point():
-    target_layer = QgsVectorLayer(r"""{
-      "type": "Feature",
-      "geometry": {
-        "type": "Point",
-        "coordinates": [0.0, 0.0]
-      },
-      "properties": {
-        "testname": "Null Island"
-      }
-    }""")
-    renderer = Renderer(target_layer, "testname")
-    symbol_renderer = renderer.make_renderer()
-    assert isinstance(symbol_renderer, QgsSingleSymbolRenderer)
-
-
-def test_renderer_polygon(mocker: MockerFixture):
-    # in QGIS-API there are some classes which crash on test environment
-    # -> mock methods using them
-    mocker.patch("gtfs_go_renderer.Renderer._make_categories_by", return_value=[])
-
-    polygon_layer = QgsVectorLayer(r"""{
-      "type": "Feature",
-      "geometry": {
-        "type": "Polygon",
-        "coordinates": [[[
-          0.0, 0.0,
-          0.0, 1.0,
-          1.0, 1.0,
-          1.0, 0.0,
-          0.0, 0.0
-        ]]]
-      },
-      "properties": {
-        "testname": "Null Square"
-      }
-    }""")
-
-    p_renderer = Renderer(polygon_layer, "testname")
-    p_symbol_renderer = p_renderer.make_renderer()
-    # when input is polygon, QgsCategorizedSymbolRenderer is used
-    assert isinstance(p_symbol_renderer, QgsCategorizedSymbolRenderer)
diff --git a/tests/test_metadata.py b/tests/test_metadata.py
new file mode 100644
index 0000000..5a6e204
--- /dev/null
+++ b/tests/test_metadata.py
@@ -0,0 +1,47 @@
+import configparser
+import os
+import unittest
+
+
+class TestInit(unittest.TestCase):
+    """Test that the plugin init is usable for QGIS.
+    reference: https://github.com/felt/qgis-plugin/blob/main/felt/test/test_init.py
+    """
+
+    def test_read_init(self):
+        """Test that the plugin __init__ will validate on plugins.qgis.org."""
+
+        # You should update this list according to the latest in
+        # https://github.com/qgis/qgis-django/blob/master/qgis-app/
+        #        plugins/validator.py
+
+        required_metadata = [
+            "name",
+            "description",
+            "version",
+            "qgisMinimumVersion",
+            "email",
+            "author",
+        ]
+
+        file_path = os.path.abspath(
+            os.path.join(os.path.dirname(os.path.dirname(__file__)), "metadata.txt")
+        )
+        metadata = []
+        parser = configparser.ConfigParser()
+        parser.optionxform = str
+        parser.read(file_path)
+        message = 'Cannot find a section named "general" in %s' % file_path
+        assert parser.has_section("general"), message
+        metadata.extend(parser.items("general"))
+        for expectation in required_metadata:
+            message = 'Cannot find metadata "%s" in metadata source (%s).' % (
+                expectation,
+                file_path,
+            )
+
+            self.assertIn(expectation, dict(metadata), message)
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/test_qgis_environment.py b/tests/test_qgis_environment.py
new file mode 100644
index 0000000..f32bae8
--- /dev/null
+++ b/tests/test_qgis_environment.py
@@ -0,0 +1,26 @@
+"""
+Tests for QGIS functionality.
+"""
+
+import unittest
+
+from qgis.core import QgsProviderRegistry
+
+from .utilities import get_qgis_app
+
+QGIS_APP = get_qgis_app()
+
+
+class QGISTest(unittest.TestCase):
+    """Test the QGIS Environment"""
+
+    def test_qgis_environment(self):
+        """QGIS environment has the expected providers"""
+
+        r = QgsProviderRegistry.instance()
+        self.assertIn("gdal", r.providerList())
+        self.assertIn("ogr", r.providerList())
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/test_repository_api.py b/tests/test_repository_api.py
deleted file mode 100644
index 1ecf8fe..0000000
--- a/tests/test_repository_api.py
+++ /dev/null
@@ -1,20 +0,0 @@
-from repository.japan_dpf import api
-
-
-def test_get_feeds_valid():
-    feeds = api.get_feeds("2024-08-01")
-    assert len(feeds) > 0
-
-    feeds = api.get_feeds("2024-08-01", extent="139.7,35.6,139.8,35.7", pref="6")
-    assert len(feeds) > 0
-
-
-def test_get_feeds_invalid():
-    feeds = api.get_feeds("2024-08-01", pref="48")  # 48 is invalid pref
-    assert len(feeds) == 0
-
-    feeds = api.get_feeds("2000-08-01")  # too old
-    assert len(feeds) == 0
-
-    feeds = api.get_feeds("2024-08-01", extent="0,0,0,0")  # null island
-    assert len(feeds) == 0
diff --git a/tests/utilities.py b/tests/utilities.py
new file mode 100644
index 0000000..22446c6
--- /dev/null
+++ b/tests/utilities.py
@@ -0,0 +1,111 @@
+"""
+Common functionality used by regression tests.
+"""
+
+import atexit
+import logging
+import os
+import sys
+
+from qgis.core import QgsApplication
+from qgis.gui import QgsMapCanvas
+from qgis.PyQt.QtCore import QSize
+from qgis.PyQt.QtWidgets import QWidget
+from qgis.utils import iface
+
+from .qgis_interface import QgisInterface
+
+LOGGER = logging.getLogger("QGIS")
+QGIS_APP = None  # Static variable used to hold hand to running QGIS app
+CANVAS = None
+PARENT = None
+IFACE = None
+
+
+def get_qgis_app(cleanup=True):
+    """Start one QGIS application to test against.
+
+    :returns: Handle to QGIS app, canvas, iface and parent. If there are any
+        errors the tuple members will be returned as None.
+    :rtype: (QgsApplication, CANVAS, IFACE, PARENT)
+
+    If QGIS is already running the handle to that app will be returned.
+    """
+
+    global QGIS_APP, PARENT, IFACE, CANVAS  # pylint: disable=W0603
+
+    if iface:
+        QGIS_APP = QgsApplication
+        CANVAS = iface.mapCanvas()
+        PARENT = iface.mainWindow()
+        IFACE = iface
+        return QGIS_APP, CANVAS, IFACE, PARENT
+
+    global QGISAPP  # pylint: disable=global-variable-undefined
+
+    try:
+        QGISAPP  # pylint: disable=used-before-assignment
+    except NameError:
+        myGuiFlag = True  # All test will run qgis in gui mode
+
+        # In python3 we need to convert to a bytes object (or should
+        # QgsApplication accept a QString instead of const char* ?)
+        try:
+            argvb = list(map(os.fsencode, sys.argv))
+        except AttributeError:
+            argvb = sys.argv
+
+        # Note: QGIS_PREFIX_PATH is evaluated in QgsApplication -
+        # no need to mess with it here.
+        QGISAPP = QgsApplication(argvb, myGuiFlag)
+
+        QGISAPP.initQgis()
+        s = QGISAPP.showSettings()
+        LOGGER.debug(s)
+
+        def debug_log_message(message, tag, level):
+            """
+            Prints a debug message to a log
+            :param message: message to print
+            :param tag: log tag
+            :param level: log message level (severity)
+            :return:
+            """
+            print("{}({}): {}".format(tag, level, message))
+
+        QgsApplication.instance().messageLog().messageReceived.connect(
+            debug_log_message
+        )
+
+        if cleanup:
+
+            @atexit.register
+            def exitQgis():  # pylint: disable=unused-variable
+                """
+                Gracefully closes the QgsApplication instance
+                """
+                try:
+                    # pylint: disable=used-before-assignment
+                    # pylint: disable=redefined-outer-name
+                    QGISAPP.exitQgis()  # noqa
+                    QGISAPP = None  # noqa
+                    # pylint: enable=used-before-assignment
+                    # pylint: enable=redefined-outer-name
+                except NameError:
+                    pass
+
+    if PARENT is None:
+        # noinspection PyPep8Naming
+        PARENT = QWidget()
+
+    if CANVAS is None:
+        # noinspection PyPep8Naming
+        CANVAS = QgsMapCanvas(PARENT)
+        CANVAS.resize(QSize(400, 400))
+
+    if IFACE is None:
+        # QgisInterface is a stub implementation of the QGIS plugin interface
+        # noinspection PyPep8Naming
+        IFACE = QgisInterface(CANVAS)
+
+    return QGISAPP, CANVAS, IFACE, PARENT